1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4ce9147d9d84feb3bc95b1b6b5656cad41e6bb7b505f821c25f86b63252c818. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e727b7f4-cfbc-4e61-931e-2cf069f31f9e.json and https://artists.proofprofile.net/proofs/artist/e727b7f4-cfbc-4e61-931e-2cf069f31f9e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ce300f594ff23e254c0a1411f2f1138f6c3d708b1399412322bdac4fddc21b. Chain 2 (Bitcoin): anchored in block 958805 (2026-07-20T02:22:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGWN1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22cec9b3ab95bb2c2501f8b7745084b733acf2a323ce78eb7bea244460bde7fc. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGWN1700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe24d72649999a7453fca787849dc6718ea596f8a39e55def663ab69040bad478. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGWN1700006.
Salten Curanderitos (feat. Dominika Zagozdzon)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7fe1d7f85232211e613ee97fa4403298e481cd77089572e55c9d153ae30387d3. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGWN1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378d6aa6ffbf8879231f7ca52ab8d408a8ea24e8e7d3743c9b31beda7447ce85. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGWN1700008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4695cd62dfac78fb531d5bc61ad591960fa903933314e813574a5f76952deec6. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGWN1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6016f879ba91df274ab836462d5aee94cea7615de5303c41bb22856c8c4376e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN41937454.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ec86018e1ca80189cb14a33e6b7511bbac1124d59963f396ca0a4a92e1163b5. Chain 2 (Bitcoin): anchored in block 957642 (2026-07-12T02:46:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGWN2100004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2ca6d0ef8d3c1f4c8ccdca320b89a9130231f2773e4200136ae7fb6a4d6b506. Chain 2 (Bitcoin): anchored in block 958975 (2026-07-21T06:12:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGWN2100006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6705981f3e6d358b0ae71f2d240a05070f5da8370cc982b2a90e2af1226a3267. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGWN2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4f1e378b0268a4d0ab93970c9c2c8cdb37d81888f615497412dbfac05777e7a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGWN2100008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07601cb66a44aded371641a00a72eba99262cca135387851a61abf1e933d93ce. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGWN2100009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbab187f4028c58c6125037f1c92cbfb39f6ecdeb834df4c664fb3427b2769b. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGWN2100010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4a7d7472de624342c7f7e59d8f24636cbac93ae67d2c78b33ed5871ff0e1a95. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGWN2100012.
Twinkle Twinkle Little Star (En vivo en la casa de mis abuelos)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f79f10aee5f674e70b1c53603cbc2e7f909b98491f333d13865375841c02e83. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWW2108632.
Step into the Holy Fire (live in the here and now)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8abbffbcad4506835adf6f80a6109e523c810bf78ac904f5007eb9f96d84dc1c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTAT2174033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2345f4bb147182aa1284ca7d2b85bf4a4f63b64e24bea6a8da5216fc62dae882. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB92255519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa833726e8464ea8a9886ed1e9c0bf196f910bf187fd4e32ebf8429f3564e8fa4. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNB2304728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f17a1676ee630f3524e2395170c98d9919d0a6a4f7f41e312ae777ad406bd3a. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWR2464947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff8cdbb31ba64c29bed963d11a3b786f9402691a7d53493e74b2d629cd106af3. Chain 2 (Bitcoin): anchored in block 958705 (2026-07-19T08:43:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNWS2424159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde519c6bd60339576240da6b7e7b76cf6711836759b324974ceb6f5314507c68. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB42445606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf53d48b11fbaf2d67bef55189922bcc19bc2689c01930f3b56d8c4801387a5a0. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB42445608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c802c01a60e2897dff4dcada81e30d70be92fdd77136039f4b81bc88ac3965e. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB42445609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe220e8443d1149791e049665e247c6e087361b2ba8b467d8c4c0f0d86366257a. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB42445610.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46a88e8c0f2b5296e76c3a8e2b54a29301b78f03113849461ca5361b5cd51af8. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTB42445612.
Song of the Eighteenities (True World Order Demo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cde14745d692954e7436ad7a3f24860a55a8ca5736153ce74eaa9e1b93e9f94. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6L2552363.